We have calculated the evolution of flavor non–singlet structure functions in the unpolarized and polarized
case, which become available in high luminosity experiments performed both on proton and deuteron data with
comparable statistics. The evolution has been performed in Mellin \(N\)  space using our code QCDEVO.
Referring to the structure functions directly has the advantage that the input distributions
are measured. The evolution does only depend on the QCD scale \(\Lambda _{\rm QCD}\)  and the heavy
quark masses \(m_c\)  and \(m_b\) , the latter of which have been measured very precisely already [1]}.
Therefore, this method allows for a one parameter fit of \(\Lambda _{\rm QCD}\)  only, and provides a method
which is systematically very stable. The input, after corrections for the deuteron wave function, is given by
the difference of two structure functions which both can be measured at very high statistics at future facilities
[2]}, [3]}. The
heavy flavor corrections amount to a contribution of \(\sim 1\%\)  in the region \(x < 0.4\) .
